While we certainly recommend that you purchase your own copy of the book (all the proceeds go to a good cause), the authors remember being poor climbers in their day. As such, they've made their book available online as a PDF:

So good to hear. You guys have one of the authors' permission (mine) to take on that task. I'm happy to kick you all the adobe illustrator files we made for version 1, which'll at least give you something to work from. Let us know.